Chalk holder



FIG. 1 is a front view of a chalk holder showing our design;

FIG. 2 is a rear view thereof;

FIG. 3 is a side view thereof and the other side that is not illustrated is a mirror image;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is top perspective view thereof slightly enlarged to show some details; and,

FIG. 7 is a bottom perspective view thereof slightly enlarged to show some details.

The even length broken lines depict unclaimed portions of the chalk holder. The long and short broken lines define the bounds of the claimed design and form no part thereof. 

CLAIM The ornamental design for a chalk holder, as shown and described. 